Visual FoxPro

SFTP Resume Download

See more SFTP Examples

Demonstrates how to resume an SFTP download from a previous partial download. Visual FoxPro

LOCAL lnSuccess
LOCAL loSftp
LOCAL lcHostname
LOCAL lnPort
LOCAL lcRemoteFilePath
LOCAL lcLocalFilePath

lnSuccess = 0

*  This example assumes the Chilkat API to have been previously unlocked.
*  See Global Unlock Sample for sample code.

loSftp = CreateObject('Chilkat.SFtp')

*  Set some timeouts, in milliseconds:
loSftp.ConnectTimeoutMs = 5000
loSftp.IdleTimeoutMs = 10000

*  Connect to the SSH server.  
*  The standard SSH port = 22
*  The hostname may be a hostname or IP address.
lcHostname = "sftp.example.com"
lnPort = 22
lnSuccess = loSftp.Connect(lcHostname,lnPort)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

*  Authenticate with the SSH server.  Chilkat SFTP supports
*  both password-based authenication as well as public-key
*  authentication.  This example uses password authenication.
lnSuccess = loSftp.AuthenticatePw("myLogin","myPassword")
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

*  After authenticating, the SFTP subsystem must be initialized:
lnSuccess = loSftp.InitializeSftp()
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

*  Download the file:

lcLocalFilePath = "c:/temp/hamlet.xml"
lcRemoteFilePath = "subdir1/subdir2/hamlet.xml"
*  The ResumeDownloadFileByName method will check
*  the local file and begin downloading the remote file
*  at the appropriate point.  For example, if the local
*  file is already 215624 bytes long, it will begin downloading
*  the remote file at the 215625'th byte -- appending to
*  the local file.
lnSuccess = loSftp.ResumeDownloadFileByName(lcRemoteFilePath,lcLocalFilePath)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

? "Success."

RELEASE loSftp